10129 results about "Power saving" patented technology

Systems and methods for processing, transmitting, and displaying data received from a continuous analyte (e.g., glucose) sensor are provided. A sensor system can comprise a sensor electronics module that includes power saving features, e.g., a low power measurement circuit that can be switched between a measurement mode and a low power mode, wherein charging circuitry continues to apply power to electrodes of a sensor during the low power mode. The sensor electronics module can be switched between a low power storage mode and a higher power operational mode via a switch, e.g., a reed switch or optical switch. A validation routine can be implemented to ensure an interrupt signal sent from the switch is valid. The sensor can be physically connected to the sensor electronics module in direct wireless communication with a plurality of different display devices.

A method and system for efficiently managing power consumption in a mobile device controls power consumption with an adjustable sleep period or listening interval that may be user-specified and automatically tuned based on recent detected usage. With an adjustable sleep period, a receiver conserves power by leaving a sleep mode only at predefined and adjustable periods, which may be selected by the user to balance connectivity and power saving and which may be automatically incremented when the device activity is low.

A power management method for a handheld electronic device is provided. In the present method, a G-sensor is used for detecting a normal vector of a plane of the handheld electronic device. The normal vector is then determined whether being directed toward a downward direction. When the normal vector is determined as being directed toward the downward. Accordingly, the handheld electronic device can be controlled to enter the power saving mode timely according to the positioned state of the device without going through complicated procedures such as operating a menu, so as to provide a more intuitive and convenient way for power management.

An energy controller (10) as a communication device for transmitting and receiving data by transmitting a signal for establishing transmission and reception of the data to network-connected home appliances (11a to 11c), the energy controller (10) including: a power saving control unit which determines a transmission period such that the transmission period during which the signal is transmitted is increased as a power value difference increases, which is a value obtained by subtracting the total power consumption value of a power consumption appliance from available power supply value to the power consumption appliance including the network-connected home appliances (11a to 11c); and wireless communication IF (22) for transmitting the signal containing the information indicating the transmission period to the network-connected home appliances (11a to 11c) in order to set the network-connected home appliances (11a to 11c) in an active state with a period according to the transmission period.

A new system and method is described, utilizing a scheduler based on a transmission power consumption calculation and prioritizing algorithm. The system utilizes the (APSD) protocol specified in the 802.11e draft for saving power in wireless local area networks. The system comprises an access point having a priority queue, one or more stations, an APSD frame comprising an association ID for identifying one of the stations and a scheduled wake-up time for the identified station. An algorithm is employed for calculating the total transmission power consumption of downlink data for the stations. The AP originates and transmits to the one or more stations the APSD frame of the scheduled activation delay time. The current data to be transmitted to each station is accessed by the algorithm to determine the total transmission power consumption to each station. A priority queue in the AP is ordered from the lowest to the highest receiving power consumption, assigning the highest priority to the lowest power consumption transmission to minimize total power consumption to the PS stations in the AP queue.

An environment control system for controlling the temperature in a room, the system comprises a heating and cooling system; a thermostat for monitoring the temperature within a room and controlling the heating and cooling system; a motion sensor for detecting whether a door or window to the room has been opened; a presence detector for detecting whether the room is currently occupied; and a control system in communication with the thermostat, the motion sensor, and the presence detector, the control system being configured to control the room's temperature via the thermostat based at least in part on signals received from the thermostat, the motion detector and the presence detector, the control system being configured to cause the heating and cooling system to operate in a power savings mode when the room is unoccupied based on a series of time cycles during which the heating and cooling system is turned on or off as dictated by a plurality of temperature thresholds.

A network device includes a base band processor (BBP) receiver to detect a frame in a signal. A media access controller (MAC) receiver identifies a destination address in the frame. A power management module transitions the BBP receiver to an active mode based on an estimated energy level of the signal before transitioning the MAC receiver, a processor, a MAC transmitter, and a BBP transmitter to the active mode; transitions the MAC receiver to the active mode when the frame is present after transitioning the BBP receiver to the active mode and before transitioning the processor, the MAC transmitter, and the BBP transmitter to the active mode; and transitions the processor to the active mode based on the destination address after transitioning the BBP receiver and the MAC receiver to the active mode and before transitioning the MAC transmitter and the BBP transmitter to the active mode.

According to one embodiment, an information processing apparatus includes a CPU including a plurality of instruction processors, a monitoring unit which monitors an operating power supplying environment, and a power saving unit which controls the number of operating instruction processors provided in the CPU in accordance with the operating power supplying environment obtained by the monitoring with the monitoring unit.

A smart device is discussed, which is connected to a smart grid to perform a power saving function. According to an embodiment, the smart device includes a power information receiving unit configured to receive power information through the smart grid network; a power saving control unit configured to perform the power saving function for at least one apparatus based on the power information in a power saving mode; at least one mode switching unit configured to switch from the power saving mode to a manual mode according to a user command; and a manual mode operational time determining unit configured to determine a manual mode operational time for operating the at least one apparatus in the manual mode, the at least one mode switching unit further configured to switch from the manual mode back to the power saving mode, automatically, when the manual mode operational time expires.

A method and system are disclosed that can be applied to achieve high-throughput in a WLAN. Central to the present invention is the use of an SDMA compatible multi-beam antenna system by a WLAN access point. A system based on two types of antennas-dynamic beam forming and fixed beam antennas—is described. A mechanism and protocol are described that implement simultaneous transmissions with respect to an SDMA compatible access point and thereby improve spectral efficiency, and by extension achieve higher throughput. Based on the recognition that current WLAN MAC has major limitations in throughput, certain MAC extensions (that can be applied independently of SDMA) are described. Also disclosed are power-saving and power control techniques that improve battery performance and contribute to a reduction in station size, and a means of reducing channel interference. The present invention also deals with the problem of backward compatibility with conventional devices that implement the protocol that is a subset covered by the present invention.

A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery of the electrical power from the ballast assembly to the LEDs wherein the use of electrical power can be reduced or eliminated automatically during periods of non-use. Such means for controlling can include an on-off switch mounted in the tube or can also include a current driver dimmer mounted in the tube that regulates the amount of power delivered to the LEDs. A computer or logic arrays control the dimmer or power switch. A sensor such as an occupancy motion detection sensor mounted external to the tube or within the tube can send signals to the computer or logic array to trigger a switch or control a dimmer. Two or more such LED lamps with one or more computers or logic arrays in network communication with sensors can be controlled, so as to reduce flickering between lamps when illumination areas are being alternately occupied. Preset or manually set timers can control switches or be used in combination with the computer, logic array, and dimmer.

A method for protecting a password of a computer having a non-volatile memory is disclosed. A password is stored in a non-volatile memory of a computer. The computer is then transitioned to a power saving state. In response to a detection of an unauthorized access to the non-volatile memory during the power saving state transition, a password input is requested from a user. The computer returns to a power-on state from the power saving state when there is a success in authentication of the input password.

A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery of the electrical power from the ballast assembly to the LEDs wherein the use of electrical power can be reduced or eliminated automatically during periods of non-use. Such means for controlling include means for detecting the level of daylight in the illumination area of said least one LED in particular a light level photosensor and means for transmitting to the means for controlling a control signal relating to the detected level of daylight from the photosensor. The photosensor can be used in operative association with an on-off switch in power connection to the LEDs, or with a computer or logic gate array in operative association with a dimmer that controls the power to the LEDs. An occupancy sensor that detects motion or a person in the illumination area of the LEDs can be optionally used in association with the photosensor and the computer and dimmer. Two or more such LED lamps with one or more computers or logic gate arrays can be in network communication with the photosensors and the occupancy sensors to control the power to the LEDs.

A dual-mode mobile station for accessing a wide-area wireless network according to a first wireless protocol and a small-area wireless network according to a second wireless protocol. The dual-mode mobile station comprises a controller that switches the dual-mode mobile station between a first mode in which the dual-mode mobile station communicates with the wide-area wireless network and a second mode in which the dual-mode mobile station communicates with the small-area wireless network. The controller switches the dual-mode mobile station between the first and second modes depending on a distance between the dual-mode mobile station and an access point of the small-area wireless network. When the dual-mode transceiver enters the first mode, the controller turns off a transceiver that operates in the second mode in order to save power.

A power saving method for self-luminous displays and an apparatus thereof, comprises determining active and inactive portions of a display screen. The inactive portions of the display screen are modified in accordance with criteria to save power by reducing energy consumption of the inactive portions while the active portions remain powered.

The present invention relates to an apparatus and a method for controlling power management based on information on ticks for performing program tasks and information on each of power management states, which is applicable to every apparatus and component able to enter a power saving state.

By means of entering a corresponding power management based on a result of comparing idle time of a processor during the tick with resume time of each power management state, power consumption can be reduced.

An image rendering unit (IRU) of a device determines the dynamic frame rate capabilities (DFRCs) of a display and an image frame rate of content to be displayed. Preferably, the DFRCs are stored in a storage device deployed within the display itself. Based on the DFRCs and the image frame rate for the content, the IRU determines an updated frame rate and thereafter provides the content to the display at the updated frame rate. Where control of power consumption is desired, selection of a reduced frame rate can effect a power savings. In this manner, the present invention provides flexible control over display frame rates and/or power consumption of the device.

One embodiment provides a system for power saving in an Ethernet Passive Optic Network (EPON). The system includes an optical line terminal (OLT), an optical network unit (ONU), a traffic-detection module configured to detect status of traffic to and from the ONU, and a power-management module configured to place the ONU in sleep mode based on the detected traffic status. The ONU includes an optical transceiver that includes an optical transmitter configured to transmit optical signals to the OLT and an optical receiver configured to receive optical signals from the OLT.

Certain aspects of a method and system for a power control based on application awareness in a packet network switch are provided. Data communication flow may be monitored in ports in a packet network switch based on packet classification. Ports where data flow is not detected may have at least some functionality disabled to reduce power consumption. In this regard, a power saving mode may be utilized for disabling at least some functionality in a switch port, such as Ethernet ports, for example. A partially disabled port may be fully enabled when monitoring detects active data communication flow in that port. Port functionality may be enabled or disabled sequentially, for example. In some instances, a physical layer portion of the packet network switch may be utilized to adjust power in a port based on the data communication flow.